Cooling apparatus.



R. PURDUE.

COOLING APPARATUS.

APPLICATION FILED NOV. 10. I914.

1,206,590. I Patented Nov. 28,1916.

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R. PUR'DUE. COOLING APPARATUS.

APPLICATION FILED NOV. 10, 1914.

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' RUDOLPH PURDUE, OF DAYTONA, FLORIDA.

coomivc APPARATUS.

Specification of Letters Patent.

PatentedNov. 28, 1916.

Application filed November 10, 1914. Serial No. 871,347.

To all whom it may concern Be it known that I, RUDOLPH PURDUE, a subject of the King of Great Britain, residing at Daytona, in the county of Volusia and State of Florida, have invented new and useful Improvements in Cooling Apparatus, of which the following is a specification.

This invention relates to cooling apparatus, the object in view being to provide simple, inexpensive and yet reliable apparatus for cooling both air and liquid for various purposes such as materially reducing the temperature in hotels, dining rooms, picture palaces, hospitals, churches, stores, cold storage buildings, houses and dwellings public and private of all kinds; also for producing cold water for use in breweries, butter factories and all places where cold water is useful; also for reducing the temperature of various liquids such as beer and ale.

With the above and other objects in View, the invention consists in the novel construction, combination and arrangement of parts, as herein described, illustrated and claimed.

In the accompanying drawings :Figure 1 is a perspective view showing the container of this invention, looking toward the discharge end thereof. Fig. 2 is a similar view looking toward the receiving end thereof. Fig. 3 is a vertical longitudinal section through the same. Fig. 4 is an enlarged vertical cross section through the same.

Referring to the drawings A generally designates a container which, in the preferred embodiment of this invention, is cylindrical and preferably arranged with its longitudinal axis substantially horizontal. The container embodies the main lower section 1 and an upper section 2 which is detachable from the section 1, being shown as hinged thereto at 3 and connected thereto at a diametrically opposite point by means of fasteners 4 of any suitable description.

B designates a rotary cylinder which is journaled within the container A, said cylinder embodying a central shaft 5 which is journaled in bearings 6 in the opposite end walls or heads of the container or casing A so that said cylinder may freely revolve for the purpose of continuously wetting the surface of the cylinder, the container A being adapted to hold Water or other liquid in which the lower portion of the cylinder is constantly submerged as it revolves. The container A is supported at a suitable ele vation by means of legs 6. The liquid is admitted to the container A at one end by means of a liquid inlet pipe 7 and the liquid is discharged from the container through an outlet pipe 8 at the opposite end of the container where said liquid is delivered into a servlce pipe 9 and conducted to the point of use, the service pipe 9 being shown as equipped with a receiving funnel 10. The upper section 2 of the container A is provided in one end with an air inlet orifice 11 adapted to have an air connection applied thereto so that air under pressure from a suitable blast fan may be discharged into the container, the air escaping therefrom through an outlet orifice 12 in the opposite end of the section 2 of the container. The outlet orifice 12 is adapted to be connected to a service pipe for conducting the cooled air to the point of use.

The cylinder, in the preferred embodiment of this invention, incloses an evaporating surface of large area, the same being shown in Fig. at as consisting of a sheet 13 of some such material as thin metal (copper being preferred), said sheet being rolled in involute form and being secured to the central shaft 5 of the cylinder so that the rolled sheet revolves with said shaft, the shaft and sheet 13 together forming the cylinder. The convolutions of the sheet 13 are held in proper spaced relation to each other by any suitable means such as bolts or rods 14 eX tending radially outward from the shaft 5 and diametrically of the cylinder as a whole as shown in Fig. 4;, said bolts or rods being shown as surrounded by coils 15 of wire or the like, the convolutions of the coils occurring in the intervals between the convolutions of the cylinder so as to keep the latter out of contact with each other and thereby provide a wetted surface of large superficial area across which air under pressure is forced, said air being admitted through the orifice 11 and being discharged through the orifice 12 above described.

Under the arrangement employed, a circular series of flights 17 is provided around the cylinder, -said flights being disposed obliquely so as to form buckets extending the entire length of the cylinder for catching the liquid admitted through the connection 7 as shown in Fig. 4, the liquid thereby serving to revolve the cylinder. As a result of the construction and operation just described, the entire surface of the cylinder is kept in a constantly wet condition and 'eX- posed to the evaporating action of the air under pressure passing through the container and across the wetted surface of the involute sheet. In some cases it may be found desirable to perforate the sheet 13 as indicated at 18.

The process of evaporation carried out by the apparatus hereinabove described induces a rapid cooling of both the air and the liquid and either or both are conducted by means of pipes or conduits to the desired point or points of use. Any type of blast fan or blower may be connected to the container so as to cause a blast of air to pass through the same and said fan or blower may be driven by any desired or convenient power.

The apparatus may be manufactured economically and the cost of maintenance thereof is very small due to the inexpensive construction employed.

By reason of the particular construction of the cylinder, a maximum amount of wetted surface is provided in a minimum amount of space, making the container compact so that it may be located in any con- 0 venient place. 7 The cold air and liquid emanating from the cooling apparatus may be used for a large variety of purposes which will readily suggest themselves to the user.

VYhat I claim is Cooling apparatus comprising a hollow cylindrical liquid container, a rotary hollow cylinder journaled to revolve on a horizontal axis therein while partially submerged in the liquid and abutting at its ends against the container heads, said cylinder inclosing an evaporating surface consisting of a spirally rolled sheet, ties connecting the convolutions of said sheet, means interposed between said convolutions to maintain the same in spaced relation to each other, liquid inlet and outlet connections, inlet and outlet con nections for air under pressure, and propellingfiights arranged around the periphery of the cylinder in the path of the inflowing liquid.

In testimony whereof I afiix my signature in presence of two witnesses.

RUDOLPH PURDUE. Witnesses A. E. DONNELLY, E. HAMILTON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C. 

